updated files for week1

Author: abhishekkumkar

Diff for: Week 1/01_Python_for_beginners.ipynb

@@ -20,7 +20,7 @@
       "version": "3.7.3"
     },
     "colab": {
-      "name": "01 Python_for_beginners.ipynb",
+      "name": "01_Python_for_beginners.ipynb",
       "provenance": []
     }
   },
@@ -807,17 +807,6 @@
       "execution_count": null,
       "outputs": []
     },
-    {
-      "cell_type": "markdown",
-      "metadata": {
-        "id": "IKLD19akeIlG"
-      },
-      "source": [
-        "# Why should I use .lower() to sanitize the user input ?\n",
-        "- Always write your code in a way that even if user enters the most dumb input your program can understand it.\n",
-        "![image.png](attachment:image.png)"
-      ]
-    },
     {
       "cell_type": "markdown",
       "metadata": {